VULCAN Titanium LAVA PROTECTOR SLEEVE SPARK PLUG WIRE BOOT 8cyl You paid dearly for that new spark plug wire set&comma; protect your investment with the best on the market&period; These VULCAN LAVA Fire Boots are designed for extreme protection of spark plug boots and wires&comma; in excess of 2000°F &lpar;1093&period;3 C&rpar; continuous and 3000°F &lpar;1648&period;9 C&rpar; of radiant heat&period; They can be used from ultimate race cars&comma; street vehicles&comma; to motor homes&period;